Qualitative Filter Papers-Grade 6: 3μm

Grade 40: 8 μm*

The classic general purpose ashless filter paper with medium speed and retention.

Typical applications include gravimetric analysis for numerous components in cements,clays, iron, and steel products; as a primary filter for separating solid matter from aqueous extracts in general soil analysis; quantitative determination of sediments in milk, and as a pure analytical grade clean-up filter for solutions prior to AA
spectrometry.

Also used as a high-purity filter in the collection of trace elements and radionuclides from the atmosphere.

Nuclepore track-etched polycarbonate membranes are manufactured from high-quality polycarbonate film and have sharply defined pore sizes, high flow rates, and excellent chemical and thermal resistance.

The membranes have a smooth flat surface and exhibit very low levels of extractables.